linux-kernel - [PATCH] irqchip/gic-v3-its: Reference to its_invall

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Message-ID: <20191202071021.1251-1-yuzenghui@huawei.com>
Date:   Mon, 2 Dec 2019 15:10:21 +0800
From:   Zenghui Yu <yuzenghui@...wei.com>
To:     <maz@...nel.org>, <tglx@...utronix.de>, <jason@...edaemon.net>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <wanghaibin.wang@...wei.com>,
        Zenghui Yu <yuzenghui@...wei.com>
Subject: [PATCH] irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL

It looks like an obvious mistake to use its_mapc_cmd descriptor when
building the INVALL command block. It so far worked by luck because
both its_mapc_cmd.col and its_invall_cmd.col sit at the same offset of
the ITS command descriptor, but we should not rely on it.

Signed-off-by: Zenghui Yu <yuzenghui@...wei.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index c52cc8d6d6b8..b3fec78b2226 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -598,7 +598,7 @@ static struct its_collection *its_build_invall_cmd(struct its_node *its,
 						   struct its_cmd_desc *desc)
 {
 	its_encode_cmd(cmd, GITS_CMD_INVALL);
-	its_encode_collection(cmd, desc->its_mapc_cmd.col->col_id);
+	its_encode_collection(cmd, desc->its_invall_cmd.col->col_id);
 
 	its_fixup_cmd(cmd);
 
-- 
2.19.1